Coffee Glaze Icing is the perfect decoration for your cake if you plan to serve it to a gathering of adults, because it is a mature flavour with a universal appeal. Even kids enjoy it because it is an occasional treat. To make the most of this amazing glaze icing, spread it with a damp palette knife. This will give you a smooth finish. Also, take care to use the icing as soon as it is made, before it hardens.